/// <summary>
/// Invokes the current action based on the provided message.
/// </summary>
/// <param name="message">The message upon which the action acts.</param>
public void Invoke(ICommunicationMessage message)
{
var msg = message as DataDownloadRequestMessage;
if (msg == null)
{
Debug.Assert(false, "The message is of the incorrect type.");
return;
}
if (!m_Uploads.HasRegistration(msg.Token))
{
m_Diagnostics.Log(
LevelToLog.Warn,
CommunicationConstants.DefaultLogTextPrefix,
string.Format(
CultureInfo.InvariantCulture,
"No file was registered for uploading with token {0}",
msg.Token));
SendMessage(msg, new FailureMessage(m_Layer.Id, msg.Id));
return;
}
var filePath = m_Uploads.Deregister(msg.Token);
var tokenSource = new CancellationTokenSource();
m_Diagnostics.Log(
LevelToLog.Debug,
CommunicationConstants.DefaultLogTextPrefix,
string.Format(
CultureInfo.InvariantCulture,
"Transferring file: {0}",
filePath));
var task = m_Layer.UploadData(msg.Sender, filePath, tokenSource.Token, m_Scheduler);
ICommunicationMessage returnMsg;
try
{
task.Wait();
returnMsg = new SuccessMessage(m_Layer.Id, msg.Id);
}
catch (AggregateException e)
{
m_Diagnostics.Log(
LevelToLog.Error,
CommunicationConstants.DefaultLogTextPrefix,
string.Format(
CultureInfo.InvariantCulture,
"An error occurred during the transfer of the file {0}. Exception was: {1}",
filePath,
e));
returnMsg = new FailureMessage(m_Layer.Id, msg.Id);
m_Uploads.Reregister(msg.Token, filePath);
}
SendMessage(msg, returnMsg);
}
